20199354100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{625367}}^1$

素因数の和:625417

約数の個数: 72

約数和(自身を含む): 48853748160

約数和(自身を除く): 28654394060

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 50, 68, 76, 85, 95, 100, 170, 190, 323, 340, 380, 425, 475, 646, 850, 950, 1292, 1615, 1700, 1900, 3230, 6460, 8075, 16150, 32300, 625367, 1250734, 2501468, 3126835, 6253670, 10631239, 11881973, 12507340, 15634175, 21262478, 23763946, 31268350, 42524956, 47527892, 53156195, 59409865, 62536700, 106312390, 118819730, 201993541, 212624780, 237639460, 265780975, 297049325, 403987082, 531561950, 594098650, 807974164, 1009967705, 1063123900, 1188197300, 2019935410, 4039870820, 5049838525, 10099677050, 20199354100]

約数ペア:

[(1, 20199354100), (2, 10099677050), (4, 5049838525), (5, 4039870820), (10, 2019935410), (17, 1188197300), (19, 1063123900), (20, 1009967705), (25, 807974164), (34, 594098650), (38, 531561950), (50, 403987082), (68, 297049325), (76, 265780975), (85, 237639460), (95, 212624780), (100, 201993541), (170, 118819730), (190, 106312390), (323, 62536700), (340, 59409865), (380, 53156195), (425, 47527892), (475, 42524956), (646, 31268350), (850, 23763946), (950, 21262478), (1292, 15634175), (1615, 12507340), (1700, 11881973), (1900, 10631239), (3230, 6253670), (6460, 3126835), (8075, 2501468), (16150, 1250734), (32300, 625367)]